How many BTUs do I need to heat my house?
How many BTUs do I need to heat my house?
For example, a 300 square foot room typically requires 7,000 BTUs to maintain a comfortable temperature, while a 1,000 square foot room requires 18,000 BTUs. A simple formula to determine your heating needs is: (desired temperature change) x (cubic feet of space) x . 133 = BTUs needed per hour.
How many BTU of heat do you need per square foot?
Estimating Furnace Size Based on Square Footage The general rule of thumb is that you need between 30 and 60 BTUs per square foot, depending on your climate. Climate zones can help you determine how many BTUs per square foot you need.
How many BTU do I need for a 1500 square foot house?
STEP 1: Determine how many BTUs of heating and tons of AC you need
| House Square Footage | BTUs Needed |
|---|---|
| 1,000 – 1,200 | 21,000 |
| 1,200 – 1,400 | 23,000 |
| 1,400 – 1,500 | 24,000 |
| 1,500 – 2,000 | 30,000 |
How many BTU per hour to heat a house?
A typical furnace is rated at 100,000 or 80,000 BTU per hour, but furnaces might be as small as 40,000 or as large as more than 200,000 BTU. A 90 percent high-efficiency rated at 60,000 BTU will deliver about 54,000 BTUs per hour of heat energy to your home.
What is the formula for BTU?
Many techs are familiar with the temperature rise formula for checking airflow. It is derived from the specific heat formula: BTU = weight x ΔT x Specific Heat.
How many BTU to heat?
A standard that is used by heating and cooling equipment companies is to provide at least 25 to 30 Btu of heat per square feet in the home for a moderate to warm climate. A mid-sized home of 2,000 square feet would need approximately 50,000 to 60,000 Btu to heat it properly.
How do you calculate BTU requirement?
The BTU requirement will be for the whole room, so you need to calculate the total amount of space the room covers. To do that you need to measure the length, width and height of the room so you can then calculate the cubic footage of each room by multiplying the length, width and height of the room.